E15
Numatic
Motor Drive Circuit Failure
Vacuum powers on but no motor sound, display shows motor fault icon
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Open-circuit motor windings, Failed motor driver on PCB, Disconnected motor wiring plug, Burned motor brushes (if brushed motor type)
How to Fix / Troubleshooting
Safety first: Remove the battery before opening the vacuum body.
- Smell test: If you previously noticed a burning smell, the motor may have failed internally.
- Check motor connector: If you are comfortable opening the housing, locate the motor and ensure its connector is firmly seated on the control PCB.
- Visual inspection: Look for signs of burning or melted plastic around the motor or PCB. Do not attempt to run the unit if you see damage.
Motor drive faults typically require replacement of the motor assembly and sometimes the control PCB. This is a complex repair best handled by a technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Motor Assembly
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